Previously, we have added a passwd function to our shell which executes
passwd and restarts uhttpd afterwards, so the WebUI password is updated.
This adds the ability to still pass command-line arguments to passwd.
The quoting of the shell variable $@ is special:
"$@" expands to "$1" "$2" .., so its use is correct here.
Fixes: #117
Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Robert Langhammer <rlanghammer@web.de>